A teenager riding a bike was injured when someone jumped out of a car in the Uptown neighborhood near Harry S. Truman College and shot him, police said.

Police were called to the scene in the 1100 block of West Wilson Avenue about 7:15 p.m. and found a 17-year-old boy shot in the left knee, said Chicago Police News Affairs Officer Amina Greer. The victim was taken to advocate Illinois Masonic Medical Center, where he was in good condition.

The teen was riding his bike west on Wilson Avenue when a vehicle pulled up and someone got out and started shooting at him, Greer said. After the shooting, the attacker fled on foot, Greer said.

A witness said he heard a couple shots nearby and was going to his window when he heard more shots close by and got down in his apartment. About 8 or 9 shots were fired in the 1100 block of West Wilson Avenue, said the witness, who asked not to be named.

"I heard the actual bullets," not just the explosive sounds of the gunfire, said the witness.

After the shooting, the witness saw one car speeding away, but he was told by other people on the scene that that car was following a black sedan from which the shots were fired.

The person who was shot appeared to be a teenage boy, about 16 or 17 years old, and he pulled his pants off and was bleeding from what appeared to be a gunshot wound to the leg, the witness said. Police were quickly on the scene, including a plain-clothes officer who at first had his gun drawn, the witness said.